This 5.5"Dia Solid Brass Porthole Shaped Hygrometer with Lacquer Coating - Wall Mount is a perfect accessory or gift for any sea lover in your family! It measures 5.5" in diameter and is made of solid brass with a lacquer coating. This fully functional hygrometer measures the moisture in the atmosphere and displays it as a percentage! It's porthole shape makes it the perfect item for that added nautical touch. Mounts easily to the wall using the provided screw holes. It is a wonderful accent to your tropical household, bedroom, or bathroom.